Fabrication of K₂Nb₈O₂₁ microcrystalline with good dispersion by molten salt synthesis

Zhuangzhuang GuoCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China

Liangliang LiuCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, PR ChinaCorrespondence[email protected]

http://orcid.org/0000-0002-1480-2253

Zhaoping HouCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China

Yongqiang WangCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China

Jun YuCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China

Haiwei JiangCollege of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan, PR China

Abstract

Well dispersed K₂Nb₈O₂₁ microcrystalline were fabricated by molten salt synthesis with the addition of KSr₂Nb₅O₁₅ (KSN) seed. The crystal structure and morphologies of the product particles were investigated. The results suggested that existing KSN seed played the role of nucleus in the K₂Nb₈O₂₁ particle growth process due to the similar crystal structure. Uniform micron-sized K₂Nb₈O₂₁ particles with large aspect ratio could be obtained by adding a small of SrCO₃ in the KCl + Nb₂O₅+KSN seed system. The particle is single crystal and the growth direction is determined to be the <001> crystallography direction.

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Fabrication of K₂Nb₈O₂₁ microcrystalline with good dispersion by molten salt synthesis

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Fabrication of K₂Nb₈O₂₁ microcrystalline with good dispersion by molten salt synthesis